tege at swox.com
Mon May 22 16:17:52 CEST 2006
> (Are there problems with ABI=64, or you just trying to limit
> the blinding speed of sparc?)
Most of the libraries are available with the 32 bits ABI by default, and I
am using gmp together with other libraries, so they have to use the same
ABI, and I did not want to recompile the others. By the way, I thought
having a 32 bits ABI did not prevent from using 64 bit types internally
and did not slow down the computations much, but I may have misunderstood
the way things work.
For SPARC, since there aren't any very useful 64-bit integer
operations, the 32-bit ABI isn't terribly much slower than the 64-bit
ABI. We use floating-point operations anyway.
But the 64-bit ABI is currently about 50% faster anyway.
As for using 64-bit operations internally under a 32-bit ABI, that's
not usually allowed, and if allowed it is inconvenient.
(and I know you are not a huge fan of sparc...)
Indeed. I am more into fast and cheap computers, than expensive and
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